Combined door check and closer.



l. DORO.

CDMBINED DOBR CHECK AND CLOSER.A

APPLICATION FILED IuNE 20. I9I4.

1,1 34, 1 1 1 Patented Apr. 6, 1915.

JOHN DORO, OF NEW YORK, N.' Y.'

COMBINED DOOR CHECK AND CLOSER.

Specication of Letters Patent.

Patented Apr. 6, 1915.

Application led .Tune 20, 1914. Serial No. 846,355.

To all whom t may concern lBe it known that I, JOHN DORO, a subject of the King of Italy, residing at NewYork city, in the county of New York and State of New York, have invented certain new and useful Improvements in Combined Door Checks and Closers, of which the following is a specification.

The general object of the invention is to simplify the construction of combined door checks and closers, and to improve these devices in point of rendering them double ended, whereby they may beapplied to either right hand or left hand doors. And to these ends the invention resides in forming a part of the casing in sections and coupling these together by bushings which function as holders for the closing springs and extending the crank shaft of the retarding or check mechanism through the opposite ends of the casing.

Other objects will appear and be better understood from that embodiment of my invention of which the following is a specification, reference being had to the accompanying drawings forming part hereof, in which Figure 1 is a perspective of my inventio in use. Fig. 2 is a detail of the casing showing the same partly in vertical section and in side elevation. Fig. 3 is a detail horizontal cross section of the barrel approximately on the line 3 3 of Fig. 2. Fig. 4 is a detail perspective of one section of the link connection. Fig. 5 is a view similar to Fig. 4 of another section of the link connection also showing a fragment of one end of the crank shaft. Fig. 6 is a detail partly in section and elevation of the retarding mechanism looking down and at right angles to Fig. 2.

In the drawings a indicates the door and b the door frame. The combined check and closer is arranged adjacent to the upper end of the door and near the inner side thereof and is provided with attaching feet c which are pierced to receive suitable fastening means, such as screws d, which secure the check and closer in the position shown. Connection between the said check and closer and the frame o is effected by means of a link connection indicated generally by e and which will be more particularly described later.

That part of the combined check and closer which s attached to the door a comprises a casing. rThis casing includes a barrel or reservoir portion g and a cylinder portion hi. The barrel portion g consists of an intermediate portion 5, end portions 6 6, caps 7 7 and bushings 8 8. The parts 6 6 are disposed at the ends of the part 5 and are interiorly screw threaded, and the bushings 8 which are externally screw threaded, couple the parts 5 and 6 6 as shown. Screws or their equivalents 9 9 pass through openings in the part 5 and bushings 8 8 and operate to prevent turning movement of the bushings in the part 5. rEhe remote ends of the bushings are opened while the opposed ends are provided with heads 10 10 and these closed ends 10 are provided with bosses 11-11 to which are attached one end of compression springs 12 12. The compression of the springs 12 12 is effected directly by a crank shaft 18 which is disposed centrally of the barrel g and with its ends projecting beyond the ends of the said barrel. The crank 14 of this shaft is disposed centrally thereof and is arranged between the adjacent heads 10 1O of the bushings 8-8, and it will be noted that this portion of the barrel is somewhat enlarged and spherical in contour, whereby to accommodate the crank 14 and admit of the turning thereof. Nuts or their equivalents are mounted on the crank shaft 13 and are suitably fastened thereto against turning movement independently of the crank shaft. rlhese nuts are bossed on their inner ends, such bosses being adapted to harbor the outer terminals of the springs 12. One of such nuts is shown in Fig. 2 and indicated by 15, the boss thereof being indicated by 16.

The cylinder 7L is arranged at right angles to the barrel g and its open inner end portion is screwed into a collar 17 on the enlarged spherical portion of the section 5. A connecting rod 18 connects the crank 14 with a wrist pin 19 which is carried by a piston 20 arranged in the cylinder h and which eX- tends transversely of a longitudinal bore 21 in the said piston. One end of the bore 20 is contracted and interiorly screw threaded to accommodate a controller herein shown in the form of a recessed screw 22 which is adjusted by a handle 23 attached to one end of a stern 24 which is rotatably mounted in a bonnet 25 at the outer end of the cylinder L and which is provided atits inner end.

with a tongue ,2G-that' interlocks withl` thebight of the screw 22.

1n Fig. 6, 26 indicates a duct communicateing at one end* with the bore 21 and 27 indicates an enlargement of thesaild-v duct! iiir which is arranged a ball valve 28 that opei-V ates to prevent `iiuid from passiI-iginY one direction through the duct, and 29v indicates,

a keeper herein shown in the yform of' a pin which,y 'functions as, a, retainer for thelball' valige 28,. l

The; linkA connection ve. through. check andfcloser is connected tothe frame b-Q isinadev-up of a link 30,1,.and vthe linkv` sections r3l. and- 321. `The link BQlandi the sectionU I Blare detachably vconnected together, a pre-- erred. form. yof detachable connection be,v tweentheseparts being shownri-Ir-F andv 5,w her1e4 one, oi' 'the parts is: provided withi key-holel slot vwhich: accommodates p a4 headedstud 34: carried. by 'thel otherv part.4v With this structure the connectinga-nd. the.

disconnecting ot the parts inayl be effected inv a simple and expeditious l-manner.. Ther outer end of the link. 3,0.vis provided with a. star-shaped openingI ofqsuch. size asV will. acconmiod'ate.fone. of the non-cylindricalbossesI 36 at either end of the; crank. vshajt. Ilhe linkv section 32 is` suitably adapted Afor connection t0v an attaching plate' 3 7' onthe frame b.. A preferred, construction for ef :a5l

ectingy connectionbetween thev attaching plate andthe; link. section 3.2 hadby form,- ing. one Voi? the parts with4 a.hook.38 and the. @therewith an,A eye; 89'to receive the; hook..

With this simple structure. the partsl .be

readily connected and disconnected when-- Yever desired. lThelink section llis some-v what flattened Vand has ascrew threaded bore f intd which is` screwed the threaded portion; of; the link section 32. ,l

Now by Virtueoi` the structure'of thelink connection e; itis; obvious that. the; combi-ned check and closer may bev expeditiously renel dered inoperative as such, and asy is: Very.l

ott'eir desired, simpl-y by detaching.A the linkz section 32; from the. attachingrpla-te 3T, and; byll Virtue of the structure; of` the; crank shaft 13 a simple reversal ofthe casing; g 'front the. positionshown inI Fig'. 1,.will adapt the device to; operate onv a .doorv hinged so as to swing' in'. ai direction opposed to that shown in the drawings. vItwill; be tur-ther noted that the connection. between the link 3Qand;

the crank shaft 18 is suchE as willl ajdrnit ot compensating for any loss Y of velasticity-y in the springs;. In the event ofV observing: insuiiicientv energy in the springs to-ei'ect the closing of the. door,. the-link 3O'y may be detached from: thefcrank shaft and readjusted onto: aV different part of the boss 36,1.sor as'ft'o' effect the required; tensioning of the'springs,`

to close the door. And finally the structure of the link sections 3l and 32 admits of Varying the length; of the link connection e so that-the'- attachi-ng'platehmay, withi-nY certain limits', be arranged at any required distance from-ones1de--oithe door frame.

It will be noted that theouter parts of the sections G4-6l are contracted around the Vcrank shaft 13 as indicated at ll0 in Fig. 2.

This structure provides a bearizi1, ',for the crank, shaftfand operates to maintain the same centeredQmThe outer ends of the sections 6--6 are chambened andgthe caps 7.

which] Vcover.- these outer portions, lcompress springstlf, one@ofwliich isgshowgineFigf. 2. andi. theV springs Y holjd packing 43; snugly atoundthefcrankg'shatso as to prevent;leakf.y age Therbonnet alsetghtenspakng.

eea-wund the stern .21k and YBrevete leakage. at this point. ,Y V; Y

.Whemthe devie' sfgappl-ied Ltoa@door-the chamber-.portion g. and .cylinder are. .1: ll'ed with.licpi-id.` New i-twi'llibe noted that.

ther heads lio-IQ ot the. bushings arepierced.r as, indicated; atri/55s@l aste adir-*litl oi-thelq'- uidaentering they bushings.;V the screw 22 adjusted sothat communication VVis estabishedbetween the opposite elldSOf the, y",

cylinder through; the recess, in 'the said;l screwy and the .bore-V 2,1,y i-t` willrbe inaniiestlthat? whenthefdoor iszswungifrom closed to open.

' positionthe. turningfvof thecrank shaijltby 'the link connection e will operate; totensiong the` springs .l2- 42 andi to;v thef'piston toward the; chamber gg VVNow the liquid dis-fy placed byl the; piston lawfl-l flow through-the.,- diict 26 and. around` thegball;` rval-Ve 2 8 into? the Aouter:V end portion; ot the,y cylinder h.. Now when the door is released and movi-ng toclosedf position undery theactionfyothe. springs: 1:2-12 the resistance v`oii'ered by.V theI liquid `to5 the outward mmf-ing,of the piston,s will eect the closing oithe yalye 28-so';that.

adjacent; end ci the pistonf and; obviouslyY d.

thisadijiistinent may. beE eiected, byv the-turninggof the1stemE24..V y Y Y yWhat is; claimed as newl is I. In ai combined doorfcheckfandciOSer,

thecombinatioir of. a casing adapted. for-conf nection` to`v a'V door and: includingra chamber portion, the saidrhamber porticn 'beingmade. up' ofv an intermediate and endsec tions, and` bushings arranged for connecting;

vthe 'said intermediate'. toithe end sections and secured` against: turning novement in;

the said intermediate section, door closing?v Copies of this patent may be obtained for ve mechanism associated with the casing and including springs connected at one end to the bushings, and means for connecting the 15 mechanism to the door frame.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses this 1st day of June, 1914.

JOHN DORO. Witnesses:

A. M. LINDENSTRUTH, C. JAMES CRONIN.

cents each, by addressing the Commissioner ot Patenti,

Washington, D. C. 

